FitzTheRuke
Legend
I don't think you can have the cake and eat it too.
I don't agree. Context is extremely important. Casting Fireball because it "technically doesn't target anyone" sounds like someone trying to game the system. Casting Wall of Fire, OtOH, might seem like someone trying to game the system, depending on if they're trying to maximize how many enemies they "accidently" get with it, or it might be playing along with the spirit of the hopeless sigil, if they say, "It's hopeless, we're all gonna die if we don't retreat. I'll throw a wall across the room, and let's get out of here."
I don't think you have to get carried away with it either way.